Re: [PATCH v3 1/5] mm: introduce vma_start_read_locked{_nested} helpers

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To: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Subject: Re: [PATCH v3 1/5] mm: introduce vma_start_read_locked{_nested} helpers
From: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Date: Mon, 18 Nov 2024 08:57:51 -0800
Cc: akpm@xxxxxxxxxxxxxxxxxxxx, willy@xxxxxxxxxxxxx, liam.howlett@xxxxxxxxxx, lorenzo.stoakes@xxxxxxxxxx, mhocko@xxxxxxxx, vbabka@xxxxxxx, hannes@xxxxxxxxxxx, mjguzik@xxxxxxxxx, oliver.sang@xxxxxxxxx, mgorman@xxxxxxxxxxxxxxxxxxx, david@xxxxxxxxxx, peterx@xxxxxxxxxx, oleg@xxxxxxxxxx, paulmck@xxxxxxxxxx, brauner@xxxxxxxxxx, dhowells@xxxxxxxxxx, hdanton@xxxxxxxx, hughd@xxxxxxxxxx, minchan@xxxxxxxxxx, jannh@xxxxxxxxxx, shakeel.butt@xxxxxxxxx, souravpanda@xxxxxxxxxx, pasha.tatashin@xxxxxxxxxx, corbet@xxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kernel-team@xxxxxxxxxxx
In-reply-to: <20241117080931.600731-2-surenb@google.com>
Mail-followup-to: Suren Baghdasaryan <surenb@xxxxxxxxxx>, akpm@xxxxxxxxxxxxxxxxxxxx, willy@xxxxxxxxxxxxx, liam.howlett@xxxxxxxxxx, lorenzo.stoakes@xxxxxxxxxx, mhocko@xxxxxxxx, vbabka@xxxxxxx, hannes@xxxxxxxxxxx, mjguzik@xxxxxxxxx, oliver.sang@xxxxxxxxx, mgorman@xxxxxxxxxxxxxxxxxxx, david@xxxxxxxxxx, peterx@xxxxxxxxxx, oleg@xxxxxxxxxx, paulmck@xxxxxxxxxx, brauner@xxxxxxxxxx, dhowells@xxxxxxxxxx, hdanton@xxxxxxxx, hughd@xxxxxxxxxx, minchan@xxxxxxxxxx, jannh@xxxxxxxxxx, shakeel.butt@xxxxxxxxx, souravpanda@xxxxxxxxxx, pasha.tatashin@xxxxxxxxxx, corbet@xxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kernel-team@xxxxxxxxxxx
References: <20241117080931.600731-1-surenb@google.com> <20241117080931.600731-2-surenb@google.com>
User-agent: NeoMutt/20220429

On Sun, 17 Nov 2024, Suren Baghdasaryan wrote:

Introduce helper functions which can be used to read-lock a VMA when
holding mmap_lock for read. Replace direct accesses to vma->vm_lock
with these new helpers.


Reviewed-by: Davidlohr Bueso <dave@xxxxxxxxxxxx>

Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>

References:
- [PATCH v3 0/5] move per-vma lock into vm_area_struct
  - From: Suren Baghdasaryan
- [PATCH v3 1/5] mm: introduce vma_start_read_locked{_nested} helpers
  - From: Suren Baghdasaryan

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